Jennie, a very smart but stubborn girl, who has the characteristics of a demon, she might be a girl but she also made sure that no one will block her way. On the other hand, Kim taehyung who is same as demon as Jennie, can be describe as a pervert, and very naughty guy, who's so careless about his surroundings. . There's a big question now. Then what will happen when the two demons met?